From patchwork Tue Dec 15 18:08:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dikshita Agarwal X-Patchwork-Id: 344190 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92A8AC4361B for ; Tue, 15 Dec 2020 18:09:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 550F420578 for ; Tue, 15 Dec 2020 18:09:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730333AbgLOSJq (ORCPT ); Tue, 15 Dec 2020 13:09:46 -0500 Received: from alexa-out.qualcomm.com ([129.46.98.28]:44072 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727664AbgLOSJf (ORCPT ); Tue, 15 Dec 2020 13:09:35 -0500 Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 15 Dec 2020 10:08:54 -0800 X-QCInternal: smtphost Received: from ironmsg01-blr.qualcomm.com ([10.86.208.130]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/AES256-SHA; 15 Dec 2020 10:08:52 -0800 X-QCInternal: smtphost Received: from dikshita-linux.qualcomm.com ([10.204.65.237]) by ironmsg01-blr.qualcomm.com with ESMTP; 15 Dec 2020 23:38:39 +0530 Received: by dikshita-linux.qualcomm.com (Postfix, from userid 347544) id 10A7421427; Tue, 15 Dec 2020 23:38:37 +0530 (IST) From: Dikshita Agarwal To: linux-media@vger.kernel.org, stanimir.varbanov@linaro.org Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, vgarodia@codeaurora.org, Dikshita Agarwal Subject: [PATCH v5] venus: core: add support to dump FW region Date: Tue, 15 Dec 2020 23:38:36 +0530 Message-Id: <1608055716-14796-1-git-send-email-dikshita@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add support to dump video FW region during FW crash using devcoredump helpers. Signed-off-by: Dikshita Agarwal Reviewed-by: Stephen Boyd Reviewed-by: Stanimir Varbanov Major changes since v1: - update the name of function (Stephen) - store start address and size in resource structure during probe and reuse while dumping (Stephen, Stanimir) --- drivers/media/platform/qcom/venus/core.c | 30 ++++++++++++++++++++++++++++ drivers/media/platform/qcom/venus/core.h | 2 ++ drivers/media/platform/qcom/venus/firmware.c | 3 +++ 3 files changed, 35 insertions(+) diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c index bdd293f..1cc57ee 100644 --- a/drivers/media/platform/qcom/venus/core.c +++ b/drivers/media/platform/qcom/venus/core.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -22,6 +23,33 @@ #include "firmware.h" #include "pm_helpers.h" +static void venus_coredump(struct venus_core *core) +{ + struct device *dev; + phys_addr_t mem_phys; + size_t mem_size; + void *mem_va; + void *data; + + dev = core->dev; + mem_phys = core->fw.mem_phys; + mem_size = core->fw.mem_size; + + mem_va = memremap(mem_phys, mem_size, MEMREMAP_WC); + if (!mem_va) + return; + + data = vmalloc(mem_size); + if (!data) { + memunmap(mem_va); + return; + } + + memcpy(data, mem_va, mem_size); + memunmap(mem_va); + dev_coredumpv(dev, data, mem_size, GFP_KERNEL); +} + static void venus_event_notify(struct venus_core *core, u32 event) { struct venus_inst *inst; @@ -67,6 +95,8 @@ static void venus_sys_error_handler(struct work_struct *work) venus_shutdown(core); + venus_coredump(core); + pm_runtime_put_sync(core->dev); while (core->pmdomains[0] && pm_runtime_active(core->pmdomains[0])) diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h index 3a477fc..b37de95 100644 --- a/drivers/media/platform/qcom/venus/core.h +++ b/drivers/media/platform/qcom/venus/core.h @@ -178,6 +178,8 @@ struct venus_core { struct device *dev; struct iommu_domain *iommu_domain; size_t mapped_mem_size; + phys_addr_t mem_phys; + size_t mem_size; } fw; struct mutex lock; struct list_head instances; diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c index d03e2dd..89defc2 100644 --- a/drivers/media/platform/qcom/venus/firmware.c +++ b/drivers/media/platform/qcom/venus/firmware.c @@ -201,6 +201,9 @@ int venus_boot(struct venus_core *core) return -EINVAL; } + core->fw.mem_size = mem_size; + core->fw.mem_phys = mem_phys; + if (core->use_tz) ret = qcom_scm_pas_auth_and_reset(VENUS_PAS_ID); else